lane actor#1 "planner" @8:23
lane actor#2 "nested" @9:20
region seq#1 seq
step ask#1 ask "planner" @8:40 lane=actor#1 region=seq#1 always
step ask#2 ask "nested" @9:36 lane=actor#2 region=seq#1 always
edge ask#1 -> ask#2 seq always
sink ask#1,ask#2
